Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt

   1 Qualcomm Bluetooth Chips
   2 ---------------------
   3
   4 This documents the binding structure and common properties for serial
   5 attached Qualcomm devices.
   6
   7 Serial attached Qualcomm devices shall be a child node of the host UART
   8 device the slave device is attached to.
   9
  10 Required properties:
  11  - compatible: should contain one of the following:
  12    * "qcom,qca6174-bt"
  13    * "qcom,wcn3990-bt"
  14
  15 Optional properties for compatible string qcom,qca6174-bt:
  16
  17  - enable-gpios: gpio specifier used to enable chip
  18  - clocks: clock provided to the controller (SUSCLK_32KHZ)
  19
  20 Required properties for compatible string qcom,wcn3990-bt:
  21
  22  - vddio-supply: VDD_IO supply regulator handle.
  23  - vddxo-supply: VDD_XO supply regulator handle.
  24  - vddrf-supply: VDD_RF supply regulator handle.
  25  - vddch0-supply: VDD_CH0 supply regulator handle.
  26
  27 Optional properties for compatible string qcom,wcn3990-bt:
  28
  29  - max-speed: see Documentation/devicetree/bindings/serial/slave-device.txt
  30
  31 Examples:
  32
  33 serial@7570000 {
  34         label = "BT-UART";
  35         status = "okay";
  36
  37         bluetooth {
  38                 compatible = "qcom,qca6174-bt";
  39
  40                 enable-gpios = <&pm8994_gpios 19 GPIO_ACTIVE_HIGH>;
  41                 clocks = <&divclk4>;
  42         };
  43 };
  44
  45 serial@898000 {
  46         bluetooth {
  47                 compatible = "qcom,wcn3990-bt";
  48
  49                 vddio-supply = <&vreg_s4a_1p8>;
  50                 vddxo-supply = <&vreg_l7a_1p8>;
  51                 vddrf-supply = <&vreg_l17a_1p3>;
  52                 vddch0-supply = <&vreg_l25a_3p3>;
  53                 max-speed = <3200000>;
  54         };
  55 };